Bi-directional RPC communications on dynamic TCP ports are required between all vCenters in Linked Mode. Connections and ports are required between vCenter Server, Site Recovery Manager, and other VMware products for monitoring, management, and communication. Common ports include TCP ports 80, 443, 389, 902, and 8443.

1. Bi-directional RPC communications on
VCO VCO DB
Connections & Ports in ESX & ESXi
dynamic TCP ports required between
all vCenters in Linked Mode (via ADAM)
Client REMOTE
Including vCenter Server, Site Recovery Manager, VMware Consolidated Backup, VMware Data Recovery, VMware Update Manager, VMware Orchestrator and VMware Converter
RPC RPC
VMware vCenter
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